Why is PS gradient not smooth and displaying as a noise background on mac?

[piku2rei]

Hi, I need help. A full purple to transparent gradient is displaying exactly like a noise background in the poster I'm handling

Is this a driver, graphics card issue or an issue with photoshop itself?

When I export it out as png and jpg, the noise is still there.

My system

macOS High Sierra version 10.13.4

iMac (21.5-inch, Late 2013)

Processor 2.7 GHz Intel Core i5

Memory 8 GB 1600 MHz DDR3

Graphics Intel Iris Pro 1536 MB

[D Fosse]

That looks like "Dissolve" blend mode, change it to Normal.

[piku2rei]

No the layer is in normal mode. No blending mode is selected. When I open a new blank document and create the gradient on a fresh layer I get this noise effect all the same.

[davescm]

With the gradient tool look at the blending mode of the gradient (in the options bar) not just the layer

Dave

[piku2rei]

The gradient mode is normal as you can see here with the layer being selected

[c.pfaffenbichler]

Could you please post a screenshot taken at View > 100% with the pertinent Panels (Layers, Channels, Options Bar, …) visible?

[piku2rei]

Here you go!

[PECourtejoie]

Hello, please post a screen shot with the layers panel showing of a file when you draw the gradient.

Are you in RGB color mode, 8 or 16 bits?

[piku2rei · Accepted solution]

Hi! It is in RGB mode 8 bits. I think it is a glitch in PS or could possibly due to my ram? Always low in memory.

The gradient is back to smooth when I tried today with a new document and a new layer in the same file without restarting PS. I always put my mac on sleep mode when not in use

Thank you all for your help! Really appreciated it. @D Fosse @davescm @c.pfaffenbichler @PECourtejoie

[c.pfaffenbichler]

It is in RGB mode 8 bits. I think it is a glitch in PS

Should banding become noticeable you may want to consider working in 16bit when working with gradients.

The gradient is back to smooth when I tried today with a new document and a new layer in the same file without restarting PS

That could indicate a user mistake.

If one applies Gradients destructively instead of using Gradient Layers it is impossible to make sure after the fact what the actual settings were.

[PECourtejoie]

Glad it worked, I was thinking the results of an extreme resize with a dithering on, but we won't know.

that said, it might be a nice effect to have, I always wished to get a noise slider rather than the dither checkbox...

[c.pfaffenbichler]

Have you tried using Layer > New Fill Layer > Gradient?

[piku2rei]

Yes I did so yesterday and the glitch is there.

[Anurag36908593wa9z]

Change layer mode "dissolve" to "normal". Dissolve creates noise while using the gradient tool.